diff --git a/Dockerfile b/Dockerfile
index c719de7..90686a8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM lsiobase/nginx:3.10
+FROM lsiobase/nginx:3.11
 
 # set version label
 ARG BUILD_DATE
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 0183454..8d6bb23 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -1,4 +1,4 @@
-FROM lsiobase/nginx:arm64v8-3.10
+FROM lsiobase/nginx:arm64v8-3.11
 
 # set version label
 ARG BUILD_DATE
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index 2b9212b..88ee032 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -1,4 +1,4 @@
-FROM lsiobase/nginx:arm32v7-3.10
+FROM lsiobase/nginx:arm32v7-3.11
 
 # set version label
 ARG BUILD_DATE
diff --git a/readme-vars.yml b/readme-vars.yml
index 6d26186..c1c388e 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -60,6 +60,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "19.12.19:", desc: "Rebasing to alpine 3.11." }
   - { date: "18.11.19:", desc: "Nginx default site config updated for v17 (existing users should delete `/config/nginx/site-confs/default` and restart the container)." }
   - { date: "28.10.19:", desc: "Change cronjob to run every 5 minutes." }
   - { date: "24.10.19:", desc: "Nginx default site config updated due to CVE-2019-11043 (existing users should delete `/config/nginx/site-confs/default` and restart the container)." }